Added xmlns:android
Added xmlns:android

Added xmlns:android so that visual studio will correctly import the plugin via Cordova Tools for Visual Studio.
duk42111/cordova-ble,evothings/cordova-ble,evothings/cordova-ble,divineprog/cordova-ble,divineprog/cordova-ble,williamsrz/cordova-ble,mikaelkindborg/cordova-ble,fredrikeldh/cordova-ble,fredrikeldh/cordova-ble,fredrikeldh/cordova-ble,mikaelkindborg/cordova-ble,duk42111/cordova-ble,williamsrz/cordova-ble,mikaelkindborg/cordova-ble,evothings/cordova-ble,williamsrz/cordova-ble,duk42111/cordova-ble,divineprog/cordova-ble